
A car with manual-automatic transmission does not have a clutch pedal; only purely manual transmission cars come equipped with a clutch pedal. The manual-automatic transmission is a gearbox that combines the functions of manual and automatic transmissions. This technology was developed to enhance the fuel efficiency and controllability of automatic transmissions, allowing the driver to manually decide the shift timing instead of relying on computer automation, thereby improving driving operability and enriching the driver's experience. Clutch operation process: When the diaphragm spring is installed between the clutch cover and the pressure plate, it generates a pre-compression deformation that creates pressure on the pressure plate, causing the driving and driven parts of the clutch to press tightly together, meaning the clutch is engaged. The engine's power is transmitted through the flywheel, which is integrated with the crankshaft, the clutch cover, and the pressure plate to the driven plate, and then through the splined hub of the driven plate to the input shaft of the transmission. The working characteristic of this process is that the torque and rotational speed transmitted by the driving and driven parts of the clutch are the same, with no speed difference or slippage between them.

I've driven several automatic manual transmission cars before, and I'm certain they don't have clutch pedals. This type of vehicle is designed for convenience in driving, featuring paddle shifters behind the steering wheel and the ability to push the gear lever into manual mode. You only need to focus on controlling the throttle and brakes; when shifting gears, simply use the paddles or push the gear lever, and the computer will automatically handle the clutch operation. It's especially leg-saving in traffic jams since you don't have to repeatedly press the clutch. However, in manual mode, pay attention to matching the RPMs—for example, when downshifting to overtake, avoid letting the RPMs soar too high, and prolonged driving at low gears with high RPMs can also harm the engine.

I've been driving my family's automatic-manual transmission SUV for three years, and this car only has two pedals: brake and accelerator. Every time I switch to manual mode, the central display shows the current gear, allowing me to freely shift between M1 to M6. Last month, I used 2nd gear to control speed on a downhill mountain road without needing to constantly operate the clutch with my left foot like in a manual transmission. The downside is that I can't perform heel-and-toe throttle blips like professional racers, but it's perfectly sufficient for daily use. Normally, driving in D (Drive) mode is smooth without any gear shift jerks, and I just need to press the brake at red lights, making it especially suitable for friends who just got their driver's license.

In my decade of auto repair experience working with various automated manual transmissions, these vehicles indeed lack a clutch pedal. They utilize solenoid valves and hydraulic control units to replace traditional clutch mechanisms. When you move the shift lever, electrical signals instruct the transmission computer to perform clutch operations. For instance, Volkswagen's DSG gear changes take merely 0.2 seconds - significantly faster than human foot-operated clutches. However, note that aggressive driving with consecutive downshifts may cause transmission overheating, triggering protective programs to automatically upshift. Regular transmission fluid changes are crucial, otherwise clutch plate wear accelerates rapidly.

Anyone who has studied knows that the core of an automatic manual transmission is the TCU control unit. When shifting to manual mode with the gear lever, it controls the engagement and disengagement of the clutch pack through the hydraulic system—for example, the ZF 8AT has three clutch plates. In actual driving, downshifting to third gear before a turn can enhance engine traction, while starting in second gear on icy roads prevents wheel spin. Once, while driving on a mountain road, I used the M mode for continuous uphill climbs, and the power delivery felt more direct than in automatic mode. This design balances convenience and driving pleasure, but remember not to coast in neutral, as it can cause significant damage to the transmission.

Often taking students for driving tests, many ask this question. Cars with manual-automatic transmission really don't have a clutch pedal, and the left footrest area is completely flat. If you want to experience manual shifting, just use the paddle shifters behind the steering wheel to shift up or down, which is especially convenient when driving in the rain. Beginners using the M mode should remember two things: don't shift above third gear when the speed is below 20 km/h, and upshift before the tachometer hits the red zone. One student mistakenly drove in M mode all day in the city, resulting in a sharp increase in fuel consumption. It's recommended to use D mode for normal road conditions and switch to manual mode only when you want to have more control.


